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Old 4th May 2013, 04:33 PM   #211
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Not forget
- how much pre magnetization you want.
- maximimum magnetization you want



Quote:
Originally Posted by TheGimp View Post
The process is basically :

1 Determine the driving and load source impedance.
2 Calculate the inductance necessary to support the lower F3 response point
3 Guestimate the size core and stack size you will need
4 Calculate the number of turns needed to produce the needed inductance
5 calculate the wire size needed to support the DC current and acceptable DCR
6 calculate the required winding window area needed with the chosen wire size and see if it will fit in the available window area

If not, go back to 3 and try again until an acceptable result is found.
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Old 5th May 2013, 03:35 AM   #212
TheGimp is offline TheGimp  United States
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I'm still playing with the code, but figured I'd go ahead and post it.

I think this is almost complete. I am debugging the traverse motor routines with code to either wind back and forth, or only in one direction with a return to home for the next layer (Left to right winding only).

The layers, segments and turns seem to be right.

Comments welcome.

And,...
No, fortunately I don't write code for a living.

This is pretty much spaghetti code.
Attached Files
File Type: zip Coil_Winder_R_0_0_78.zip (10.4 KB, 83 views)
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Old 7th May 2013, 09:51 AM   #213
Fuling is offline Fuling  Sweden
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Thanks for sharing your code, it might be very helpful for me!
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Old 8th May 2013, 05:10 PM   #214
TheGimp is offline TheGimp  United States
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Looks like I have major system problems on my main system at home. The C: drive continually seeks during the early boot phase, and after coming out of post, it does nothing.

I replaced the C: drive with another spare that already had XP Pro installed and it booted. I shut it down last night and when I went downstairs this morning it was stuck showing bios boot sequence and nothing more. I tried resetting it and got same symptom so it looks not good.

I'll swap the PS tonight and hope it is the problem.

Last back-up was two months ago so I won't lose too much data, however all the application programs will have to be re-installed.

Bleh!
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Old 11th May 2013, 04:39 AM   #215
TheGimp is offline TheGimp  United States
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PS went to 16V+ on the 12V line.

OS drive is toast. I use one drive for OS and programs and a second drive for data. I find It is easier to back up my data that way, but in this case I've lost everything in my download directory, and a bunch of LTspice stuff.

The Data drive can still be accessed when installed in another system so that is good.

I don't know if the second XP pro OS drive is good or not. I won't know until I get a new PS as it is an SATA and the other system I tested the data drive on does not support SATA.

I've ordered another power supply and hope the os drive was the only casulty.

Posts during the day are from werk.

I am operating on a small linux system at home in the interm.
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Old 16th May 2013, 01:59 PM   #216
TheGimp is offline TheGimp  United States
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New power supply arrived.

No screen start-up, no Post, no drive seek, no nada.

Looks like the ps over-voltage took out everything except possibly the data drive.

I'll have to try to transfer the data off the other drive if I can still access it. It is an old IDE drive so I only have one remaining system in the house that can support it.
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Old 26th May 2013, 08:06 PM   #217
Tyimo is offline Tyimo  Hungary
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Hi!
How would you sectionizing a dual bobbin C-core (SU-core) for 1:0.5+0.5
SE to Balanced IT?


Greeets:
Tyimo
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Old 8th June 2013, 03:41 AM   #218
TheGimp is offline TheGimp  United States
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Default Traverse Arm and Wire Guide

Computer was a total loss.

Tyimo, I'm sorry but I have no idea.

I've been distracted and busy at werk so progress has been slow on the winder.

Here are the latest shots. I'm working on the traverse mechanism.

I'm at odds as which way to drive it. Low is easier to set up, but I believe high will give more regidity to the arm.

I'm using two pulleys so I can wind bifilar.
Attached Images
File Type: jpg HighDriveTraverse.JPG (191.1 KB, 315 views)
File Type: jpg LowDriveTraverse.JPG (185.7 KB, 308 views)
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Old 9th June 2013, 05:48 PM   #219
Fuling is offline Fuling  Sweden
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May I suggest that you add another linear guide to your traverse mechanism? That´s what I did in my machine, with two guides and one screw the whole assemly became rock solid, in opposite to how it was with only one guide.

The control system for my machine is now up and working thanks to my friends. There is plenty of room for improvements but now I can set the number of turns, traverse direction and wire thickness (in 0,01mm increments) in a simple menu system. Later on we´ll try to incorporate an rotary encoder for data input and jogging.
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Old 29th June 2013, 03:05 AM   #220
TheGimp is offline TheGimp  United States
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Default Twin Guide Traverse

Still creeping along.

I got the second guiderod and built a new shuttle assembly. The bearings will press in the copper tubes when complete.

Leadscrew is zero lash with a spring tensioner under the shuttle.
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File Type: jpg New Traverse.JPG (285.9 KB, 201 views)
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